BMW Genuine Mounting Clamp - Coolant Expansion Tank 320i 323Ci 323i 325Ci 325i 325xi 328Ci 328i 330Ci 330i 330xi X5 3.0i Z4 2.5i Z4 3.0i Z4 3.0si Z4 3.0si BMW Genuine Mounting Clamp - Coolant Expansion Tank E46 E53 E85 E86 It is used in expansion tank / mounting plate -- Expansion tank, automatic transmission -- Expansion tank, manual transmission -- Manufacturer Warranty: 24000 miles or 2 years Please see Product Description below for vehicle compatibility